circumscriptions

1.界线;范围,区域

2.限界,限制

3.【数】外接

4.〈古〉定义

5.(硬币周围的)齿刻,花边

1.the limiting of the power of something or somebody to act independently

2.the act of drawing one geometric figure around another so that they touch at every corner of the enclosed figure or at every side of the enclosing figure without cutting across each other

3.a shape drawn or enclosed by circumscription

4.a circular inscription around the edge of a coin or medal